Medium: util-linux

Issue Overview:

A command injection flaw was found in the way util-linux implements umount autocompletion in Bash. An attacker with the ability to mount a filesystem with custom mount points may execute arbitrary commands on behalf of the user who triggers the umount autocompletion. (CVE-2018-7738)

Affected Packages:

util-linux

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update util-linux to update your system.

New Packages:

aarch64:  
    util-linux-2.30.2-2.amzn2.0.9.aarch64  
    libfdisk-2.30.2-2.amzn2.0.9.aarch64  
    libfdisk-devel-2.30.2-2.amzn2.0.9.aarch64  
    libsmartcols-2.30.2-2.amzn2.0.9.aarch64  
    libsmartcols-devel-2.30.2-2.amzn2.0.9.aarch64  
    libmount-2.30.2-2.amzn2.0.9.aarch64  
    libmount-devel-2.30.2-2.amzn2.0.9.aarch64  
    libblkid-2.30.2-2.amzn2.0.9.aarch64  
    libblkid-devel-2.30.2-2.amzn2.0.9.aarch64  
    libuuid-2.30.2-2.amzn2.0.9.aarch64  
    libuuid-devel-2.30.2-2.amzn2.0.9.aarch64  
    uuidd-2.30.2-2.amzn2.0.9.aarch64  
    python-libmount-2.30.2-2.amzn2.0.9.aarch64  
    util-linux-user-2.30.2-2.amzn2.0.9.aarch64  
    util-linux-debuginfo-2.30.2-2.amzn2.0.9.aarch64  
  
i686:  
    util-linux-2.30.2-2.amzn2.0.9.i686  
    libfdisk-2.30.2-2.amzn2.0.9.i686  
    libfdisk-devel-2.30.2-2.amzn2.0.9.i686  
    libsmartcols-2.30.2-2.amzn2.0.9.i686  
    libsmartcols-devel-2.30.2-2.amzn2.0.9.i686  
    libmount-2.30.2-2.amzn2.0.9.i686  
    libmount-devel-2.30.2-2.amzn2.0.9.i686  
    libblkid-2.30.2-2.amzn2.0.9.i686  
    libblkid-devel-2.30.2-2.amzn2.0.9.i686  
    libuuid-2.30.2-2.amzn2.0.9.i686  
    libuuid-devel-2.30.2-2.amzn2.0.9.i686  
    uuidd-2.30.2-2.amzn2.0.9.i686  
    python-libmount-2.30.2-2.amzn2.0.9.i686  
    util-linux-user-2.30.2-2.amzn2.0.9.i686  
    util-linux-debuginfo-2.30.2-2.amzn2.0.9.i686  
  
src:  
    util-linux-2.30.2-2.amzn2.0.9.src  
  
x86_64:  
    util-linux-2.30.2-2.amzn2.0.9.x86_64  
    libfdisk-2.30.2-2.amzn2.0.9.x86_64  
    libfdisk-devel-2.30.2-2.amzn2.0.9.x86_64  
    libsmartcols-2.30.2-2.amzn2.0.9.x86_64  
    libsmartcols-devel-2.30.2-2.amzn2.0.9.x86_64  
    libmount-2.30.2-2.amzn2.0.9.x86_64  
    libmount-devel-2.30.2-2.amzn2.0.9.x86_64  
    libblkid-2.30.2-2.amzn2.0.9.x86_64  
    libblkid-devel-2.30.2-2.amzn2.0.9.x86_64  
    libuuid-2.30.2-2.amzn2.0.9.x86_64  
    libuuid-devel-2.30.2-2.amzn2.0.9.x86_64  
    uuidd-2.30.2-2.amzn2.0.9.x86_64  
    python-libmount-2.30.2-2.amzn2.0.9.x86_64  
    util-linux-user-2.30.2-2.amzn2.0.9.x86_64  
    util-linux-debuginfo-2.30.2-2.amzn2.0.9.x86_64  

Additional References

Red Hat: CVE-2018-7738

Mitre: CVE-2018-7738